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Kim HY, Dhong HJ, Hong SD, Lee HJ, Cho HJ, Chung SK.Kim HY, et al. Among authors: chung sk.Am J Rhinol. 2007 Jul-Aug;21(4):408-11. doi: 10.2500/ajr.2007.21.3049.Am J Rhinol. 2007.PMID: 17882907
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Kim HY, Dhong HJ, Min JY, Jung YG, Park SH, Chung SK.Kim HY, et al. Among authors: chung sk.Rhinology. 2009 Mar;47(1):79-84.Rhinology. 2009.PMID: 19382501Clinical Trial.